Window fastener



Jan. 23, 1951 H. w. FALK 2,539,065

WINDOW FASTENER Filed Aug. 20, 1948 Patented Jan. 23, 1951 WINDOWFASTENER Harold Walter Falk, Minneapolis, Minn., assignor to WrightProducts, Inc., St. Paul Park, Minn., a corporation of MinnesotaApplication August 20, 1948, Serial No. 45,319

4 Claims.

My invention relates to an improvement in window fasteners wherein it isdesired to provide an apparatus for holding a pivoted sash in adjustedrelation to its frame.

It is the object of the present invention to provide a fastener usefulin ho'ding a pivoted sash in desired adjusted relationship relative toits frame. While many such fasteners have been previously constructedthe present device is believed advantageous because of its simplicity ofconstruction and effectiveness of operation.

A feature of the present invention lies in the. provision of a Windowfastener having a pair of pivotally connected links secured together ata knee joint. Friction washers are provided in the knee joint to holdthe arms in proper adjusted relationship. The knee joint is simply constructed and inexpensive to manufacture.

A feature of the present invention resides in the provision of a windowfastener having a pair of arms formed of angle shaped cross section andwhich are pivotally connected in opposed relation. The angular flangeextending along the end of one arm is arranged to abut the angularflange on the other arm to prevent the arms from pivoting intoalignment. engaged the angular flanges on the two' arms form a sturdybrace between the arms and provide a maximum of strength.

An added feature of the present invention lies in the provision of adetachable plate having a flat side engageable with the angular flangeof one arm. Friction washers are interposed between this plate and theother arm, as well as between the said other arm and the arm to whichThese and other objects and novel featuresof my invention will be moreclearly and fully set forth in the following specificaton and claims. Inthe drawings forming a part of my speciflcation:

Figure 1 is a perspective view of my fastener showing the constructionthereof.

Figure 2 is a perspective view of the opposite side. of the fastener.Figure 3 isa longitudinal sectionaltiew through the arms showing theconstruction of the fastener.

The window fastener A includes a pair of pivotally connected arms Illand H which are pivotally connected by a pivot bolt l2. The arm isdetachably and pivotallyconnected to a When thus stile plate I3 havingan off-set center portion l4 and being terminally connected by screws orother suitable means [5 to the window frame B. The screws 15 extendthrough co-planar bracket ends I6.

The detachable connection between the stile plate l3 and the arm I0 issimilar to that described in my previous application Serial No. 717,874filed December 23, 1946, issued as Patent No. 2,498,535 on Feb. 21,1950. A spring arm I! is riveted or otherwise aflixed at 19 to the armIt and is provided with an aperture 26 near one end thereof. asindicated at 2|. arm l0 and the aperture 28 of the spring arm I! aredesigned to accommodate a pivot 22 mounted upon the off-set center I? ofthe stile plate 13. This pivot 22 is provided with a head 23 spaced fromthe off-set center portion 54 a distance slightly greater than thethickness of the arm Ill. The head 23 is too large in diameter to passthrough the sot of the bifurcated end 2!. However, when the spring arml! is in parallel re.- lation to the arm It, the head 23 engages in theaperture 20 in the spring arm and is held from longitudinal movementrelative to the arm 10. However, when the spring arm I! is sprung awayfrom the surface of the arm Ii], the pivot 22 may be disengaged from theslotted end 2! of the arm ID. A projecting finger 24 on the spring armI! extends through a siot 25 in the arm I0 for simplifying the operationof the spring arm.

The arm I!) is provided with an integral flange 26 which extends alongone edge thereof to a point slight y beyond the center point of thecon-- base plate 32 for accommodation of screws or bolts 34 by means ofwhich the bracket 3| may beattached to the pivoted window sash C. Thearm H is provided with a flange 21 extending longitudinally thereof andin' right angular relationship therewith. The'end of the flange2'lprojects slightly beyond the center of the pivot bolt l2 so that theflanges 21 and 26 engage in end abutting relation as the arms arepivoted toward aligned position.

The structure of the knee joint between the arms Ill and II is bestillustrated in Figure 3 The end of the arm I0 is bifurcated; Thebifurcated end 2! of the 3 of the drawings. The bolt I2 is provided witha multi-sided shank portion 35 adjacent the bolt head 36. Thismulti-sided shank portion 35 extends through a similarly shaped aperture31 in a bearing plate 39. The bearing plate 39 has an elongated flatside 40 which bears against the inner surface of the flange 21 and isheld from rotation thereby. The flange 21 is increased in width at itsend 4| so as to provide a firm bearing for the edge 40 of th plate 39. Atransverse notch 42 is provided in the wide portion 4| of the flange 21and an ear 43 on the plate 39 is engaged in this notch. Obviously theplate 39 is movable axially of the pivot bolt l2, but is held fromrotation by the flange 21. An ear 44 is provided on the plate 39 whichis engageable against the end of the flange 21. Thus the bearing plateis firmly supported, but is free to move toward or away from the armsand l I.

A friction washer 45 is interposed between the bearing plate 39 and thearm I8 and a pair of friction washers 48 and 4! are provided between thearm IE and the arm II. A nut 49 is provided on the pivot bolt [2, whichnut tightens against the arm H. Thus the bolt i2 is heid from rotationrelative to the arm ii and the bearing plate 39 and therefore the nuthas no tendency to loosen during operation of the knee joint.

In accordance with the patent statutes, I have described the principlesof construction and operation of my window fastener, and while I haveendeavored to set forth the best embodiment thereof, I desire to have itunderstood that obvious changes may be made within the scope of thefollowing claims without departing from the spirit of my invention.

I claim:

1. A storm window bracket for connecting a pivotally supported windowand its frame, the fastener comprising a pair of pivotally connectedarms, one of which is pivotally connected to the window and the other ofwhich is pivotally connected to the frame, said arms being connected bymeans of a pivot bolt extending through both of said arms, frictionwashers encircling said pivot bolt between said arms, a flange on one ofsaid arms along the longitudinal edge thereof and bent to extend pastthe other arm, a flange on said other arm along a longitudinal edgethereof and bent to extend over the end of said one arm, the ends ofsaid flanges being engageable in end abutting relation as said arms movetoward aligned position, a bearing plat extending parallel to said arms,an aperture in said bearing plate through which said pivot bolt extends,a friction washer on said pivot bolt between said bearing plate and theother of said arms, said bearing plate having an elongated edge designedto engage against the flange of said first named arm.

2. a storm window bracket for connecting a pivotally supported windowand its frame, the fastener comprising a pair of pivotally connect;darms, one of which is pivotally connected to the window and the other ofwhich is pivotally connected to the frame, said arms being connected bymeans of a pivot bolt extending through both of said arms, frictionwashers encircling said pivot bolt between said arms, a flange on one ofsaid arms along the longitudinal edge thereof and bent to extend pastthe other arm, a flange on said other arm along a longitudinal edgethereof and bent to extend over the end of said one arm, the ends ofsaid flanges being engageable in end abutting relation as said arms movetoward aligned position, a bearing plate extending parallel to saidarms, an aperture in said bearing plate through which said pivot boltextends, a friction washer on said pivot bolt between said bearing plateand the other of said arms, said bearing plate having an elongated edgedesigned to engage against the flange of said first named arm, atransverse notch in the flange of said one arm, and a tongue on saidbearing plate engageable in said notch.

3. A storm window bracket for connecting a pivotally supported windowand its frame, the fastener comprising a pair of pivotally connectedarms, one of which is pivotally connected to the window and the other ofwhich is pivotally'c'onnected to the frame, said arms being connected bymeans of a pivot bolt extending through both of said arms, frictionwashers encircling said pivot bolt between said arms, a flange on one ofsaid arms along the longitudinal edge thereof and bent to extend pastthe other arm, a flange on said other arm along a longitudinal edgethereof and bent to extend over the end of said one arm, the ends ofsaid flanges being engageable in end abutting relation as said arms movetoward aligned position, a bearing plate extending parallel to saidarms, an aperture in said bearing plate through which said pivot boltextends, a friction washer on said pivot bolt between said bearing plateand the other of said arms, said bearing plate having an elongated edgedesigned to engage against the flange of said first named arm, atransversed notch in the flange of said one arm, a tongue on saidbearing plate engageable in said notch, and a second tongue on saidbearing plate engaging the end of the flange on said first named arm. 4.A storm window bracket for connecting a pivotally supported window andits frame, the fastener including a pair of arms pivotally connectedtogether, one of said arms being pivotally connected to the window andthe other of said arms being pivotally connected to the frame, one ofsaid arms having a longitudinally extending flange along an edge thereofto provide an arm of angular section, a bearing plate having anelongated edge designed to engage along a surface of said flange, saidbearing plate extending parallel to said arms and having an aperturetherethrough through which a pivot bolt con necting said arms mayextend, a notch in said flange, and a projection on the elongated edgeof said bearing plate engageable in said notch. HAROLD WALTER FALK.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 2,288,540 Olson June 30, 19422,361,056 Quinn, Oct. 24:, 1944

